Nerf Gun Demo using FRDMK64F

Created: Mar 19, 2015

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Summary

Nerf guns have completely overwhelmed people at all ages from the fact that pulling the trigger does not mean causing harm to anybody. It is an amazing project that anyone could easily practice their skills in shooting. This Nerf darts uses the Freescale's FRDM-K64F, an ultra-low-cost development platform that is packed with a lot of peripherals to enable rapid prototyping, including a 6-axis digital accelerometer and magnetometer to create full eCompass capabilities, a tri-colored LED and 2 user push-buttons for direct interaction and feedback, expansion memory with a microSD card slot, and connectivity options using onboard ethernet port and headers for use with bluetooth and 2.4GHz radio add-on modules.

In spite of the entertainment we get from this gun, constructing them may be far more interesting for some. It needs only two pieces to make the device work, the base turret and the actual hacking of the Nerf gun. A 1/2 Medium-density fibreboard (MDF) and some carpentry skills are needed for the gun frame. Atop, the box is a lazy Susan (ball bearing ring) so that the top-plate can rotate smoothly. The left/right servo needs to be dead center of the lazy susan and the servos used should be large with higher torque so it can certainly perform well. There are two electrical systems in the Nerf that needs tapping. One is the power switch and the other is the electrical trigger. The trigger goes through the relay, causing it to either ON or OFF with a battery supply of 12V.

This Nerf blaster is a plastic toy gun that effectively shoots foam darts. Basically, the FRDM-K64F is the heart of the circuit that controls the device. With its promising specifications and features, this can be integrated for use in activity and wellness program that significantly collect, interpret and summarize data to improve health and fitness performance.